Tatra KT8D5 is a bidirectional light rail vehicle currently (February 2025, and not expected to retire soon, except in Brno) operating in Europe and Asia.

In several variations, it was designed and manufactured by Czech engineering corporation ČKD Tatra from 1984 to 1999 and a total of 206 cars were sold.

The original goal was to make a light rail vehicle with a higher capacity to meet growing demands for public transport.

The Tatra KT8D5 is a large, high capacity tram constructed using three articulated body sections riding on four bogies.

From 1998 to 1999, ČKD built seven Tatra KT8D5N trams with a medium low-floor cell, IGBT transistors, and TV14 electrical equipment.